Process of rendering nonpoisonous the tobacco fumes during smoking



March 21, 1933. HERRMANN 1,902,775

PROCESS OF RENDERING NONPOISONOUS THE TOBACCO FUMES DURING SMOKING Filed June 17, 1930 K yew man Patented Mar. 21, 1933 UNITED STATES PATENT OFFICE KARL HERRMANN, OF VIENNA, AUSTRIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

IBONICOT CORPORATION OF AMERICA PROCESS OF RENDERING- NONI'OISONOUS THE TOBACCO FUMES DURING SMOKING Application filed June 17, 1930, Serial No.

This invention relates to a process of absorbing the tobacco-fumes saturated with nicotine, pyridine and ammonia.

It is already known to deprive of poison the noxious ingredients of the tobacco-fumes by means of certain ferric salts in that ferric chloride or ferric ammonium sulphate is introduced either into the tobacco or into a filter arranged in front of the cigar or the cigarette for instance in the mouthpiece. It is also known to admix absorbents to the tobacco, for instance infusoria] earth or the like, in order to hold back the unpleasant tasting empyreumatic oil.

According to the present invention neither the tobacco is prepared before the cigarette or cigar is made, nor are insertions arranged in the cigarette or cigar, but the finished cigarette or cigar is treated in such a way as to render harmless the nicotine or nonpoisonous ingredients by injecting a liquid into the tobacco some distance away from the end of the cigarette or cigar, whereby the smoke is rendered nonpoisonous by the chemical reaction.

In carrying out the present invention the liquid is injected into the tobacco and the tobacco itself carries the ferric salts.

The liquid drop, injected into the tobacco by means of a syringe or the like, is located 0 some distance away from the forward end of the cigarette or cigar, while in a like way a liquid drop containing ferric salts is injected into the tobacco from the rear end of the cigarette or the like. The salts firmly adhere to the tobacco and on the drawn-in smoke.

The action is as follows Besides the important fact that the appearance of cigarettes is not changed in any way by wetting an end thereof, the drop located in the tobacco some distance away from the forward end partially reduces the poisonous substances contained in the smoke drawn off, in view of the moisture distributed over the entire cigarette or cigar.

The smoke, partially rendered nonpoison- 461,827, and in Austria. February 15, 1930.

ous, now passes through the upper zone in which the ferric salts and acids are effective, so that the smoke drawn into the mouth is freed of the greatest part (about 80%) of the nicotine, pyridine and ammonia and practically of the entire empyreumatic oil, with-' end only, the smoker can readily suit to his taste the extent of rendering harmless the poisonous substances.

Of course also pipe-tobacco can be treated in a similar way by suitably injecting the liquid into the filling of the pipe.

A solution of tartaric acid, citric acid and sodium chloride to which are added ferrous ammonium sulphate (Mohrs salt) and finally coumarin dissolved in alcohol, and if desired also scents, has been found to be a particularly favorable injection-liquid. Although generally it may be quite suflicient to inject only a liquid (water) at the forward end of the tobacco, the solution above stated can be used for both injections for the sake of simplicity.

Any convenient injector may be used for this purpose. Preferably the pointed forward end of the syringe issolid and lateral discharge openings are arranged above the same, in order to provide for a good distributibn and spreading of the liquid drop.

In the accompanying sheet of drawing, the

figure shows a cigarette partly in section treated according to the present invention.

In the drawing, 1 designates a liquid drop injected at the forward end and 2 a drop of the solution injected at the rear end of the cigarette.

I claim 1. Process of rendering nonpoisonous the tobacco smoke during smoking which consists in injecting a liquid into the cigar or cigarette at its forward end, and injecting a solution containing a ferric salt into the cigar or cigarette at its rear end.

2. Process of rendering nonpoisonous the tobacco smoke durin sists in instilling just liefore smokin a solution containing a ferric salt into t e cigar or cigarette near'one end thereof in order to form at this place a moist zone which remains moist during thesmoking and thus prevents the passage of poisonous fumes,

- In testimony whereof I afiix my'signature.

' KARL HERRMANN.

smoking which con- 

